Finding the Fourth Proportional to 311,471.13, 467,315.12 and 98,271.96
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Solution
The fourth proportional to 311,471.13, 467,315.12 and 98,271.96 is: 147,442.15
Step by Step Solution
- Step 1: Write the proportion equation
311,471.13 : 467,315.12 = 98,271.96 : x - Step 2: Convert to fraction form
311,471.13/467,315.12 = 98,271.96/x - Step 3: Cross multiply
311,471.13x = 467,315.12 × 98,271.96 - Step 4: Simplify right side
311,471.13x = 45,923,972,288.68 - Step 5: Solve for x
x = 45,923,972,288.68/311,471.13 - Step 6: Final answer
x = 147,442.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.